–BY Manojni, Nikitha, Gulabi
A green toilet complex has been started in Madurai (Tamil Nadu) in 2015. It functions with the bio-digester technology designed by DRDO. The bio digester technology was modeled on an eco friendly working model and eliminated the need of maintenance .
Anaerobic bacteria is feed into the bio digester tanks, which decomposes fecal matter into effluents & gas which are odorless. The bacteria need to be fed into the tanks only once at the start of the functioning .the bio-digester do not emit odors in contrast to conventional septic tanks.
The bio-gas produced could simply be left off into the atmosphere or used for cooking and in water heaters.